Need help constraining a section on my home page to line up with the rest of my page

[RACHEL7]

On my home page I just added a section to show my reviews through an app called "Loox Reviews". I am looking for help as to how to constrain the carousal of photo reviews so that the photos and reviews don't go past the rest of my home page sections from side to side? I am assuming this can maybe be controlled by a CSS style but I have no idea which one and what CSS to add it to? The app itself has no way to constrain this area and I have an inquiry into them and my theme developer but I am sure this is something simple for people that know their way around Shopify code and so I thought I would ask here 🙂 I would rather just quickly be able to implement it myself, support takes forever these days with everyone!